WO2015136576A1 - Dispositif et procédé de rouletage - Google Patents

Dispositif et procédé de rouletage Download PDF

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Publication number
WO2015136576A1
WO2015136576A1 PCT/JP2014/001474 JP2014001474W WO2015136576A1 WO 2015136576 A1 WO2015136576 A1 WO 2015136576A1 JP 2014001474 W JP2014001474 W JP 2014001474W WO 2015136576 A1 WO2015136576 A1 WO 2015136576A1
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WO
WIPO (PCT)
Prior art keywords
stitching
tire
fulcrum
intermediate body
arm
Prior art date
Application number
PCT/JP2014/001474
Other languages
English (en)
Japanese (ja)
Inventor
格 吉田
Original Assignee
株式会社ブリヂストン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ブリヂストン filed Critical 株式会社ブリヂストン
Priority to PCT/JP2014/001474 priority Critical patent/WO2015136576A1/fr
Priority to JP2016507125A priority patent/JP6254676B2/ja
Priority to EP14885266.8A priority patent/EP3088167B1/fr
Priority to CN201480072141.2A priority patent/CN105873751B/zh
Priority to US15/104,088 priority patent/US20160318269A1/en
Publication of WO2015136576A1 publication Critical patent/WO2015136576A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/28—Rolling-down or pressing-down the layers in the building process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/10—Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
    • B29D30/14—Rolling-down or pressing-down the layers in the building process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/30—Applying the layers; Guiding or stretching the layers during application
    • B29D2030/3064—Details, accessories and auxiliary operations not otherwise provided for
    • B29D2030/3071—Venting air inclusions during the layer applications, e.g. by creating grooves, channels, passages, holes in the band-like tire component to be applied

Definitions

  • the present invention relates to a stitching apparatus and a stitching method.
  • a stitching device that crimps a belt-shaped tire constituent member such as a tread band while rotating a tire intermediate body fixed to a tire forming drum (see, for example, Patent Document 1).
  • a belt-shaped tire constituent member is formed by pressing the stitching roller at an angle close to the side wall portion that is the side surface portion of the tire intermediate body. It is desirable to sufficiently exhaust the air inside.
  • the “tire intermediate” refers to a product formed by attaching an unvulcanized tire constituent member.
  • FIG. 1 it has a support portion 81 that moves up and down, and an arm 83 that rotates and is connected to a fulcrum portion 82 of the support portion 81, and a stitching roller is provided at the tip of the arm 83.
  • a stitching device 80 with 84 attached is proposed.
  • the stitching device 80 is configured so that the stitching roller 84 is connected to the tire intermediate body, particularly when the support portion 81 is moved upward (side away from the tire intermediate body 85). There is a problem that the angle of contact with the 85 side wall portions 86 is far from the vertical.
  • stitching portions 92 on both sides in the tire width direction centering on the tire equatorial plane CL of the tire intermediate 90 can independently move up and down, move in the horizontal direction, and rotate.
  • the apparatus as shown in FIG. 2 has a problem that a complicated mechanism is required to allow the stitching portion 92 to move in various directions, and the apparatus becomes large and the manufacturing cost increases. A simpler approach is being sought.
  • the present invention has been made to solve the above-described problems, and an object thereof is a stitching device capable of pressing a stitching jig in a direction perpendicular to a predetermined surface portion of a tire intermediate body. And providing a stitching method.
  • the present inventor has intensively studied to solve the above problems.
  • the above-described object can be achieved by a device relating to the horizontal direction (tire width direction of the tire intermediate body) position of the fulcrum portion of the support portion that moves up and down (movement of the tire intermediate body in the tire radial direction).
  • the present invention has been completed.
  • a stitching device is a stitching device for crimping a tire constituent member to a tire intermediate body, the support portion being movable in the tire radial direction of the tire intermediate body, and a fulcrum portion disposed on the support portion. And one side connected to the fulcrum part, an arm capable of rotating around the fulcrum part, and a stitching part having a stitching jig connected to the other side of the arm, The fulcrum portion is configured to be movable in the tire width direction of the tire intermediate body.
  • movable in the tire width direction means that the fulcrum part is movable in the tire width direction of the tire intermediate body during the stitching operation, but is movable and can be fixed. Is also included.
  • one side and “the other side” of the arm include the case of the end portions on the one side and the other side of the arm and the case inside the end portion.
  • a stitching device is a stitching device for crimping a tire constituent member to a tire intermediate body, the support portion being movable in the tire radial direction of the tire intermediate body, and a fulcrum portion disposed on the support portion. And one side connected to the fulcrum part, an arm capable of rotating around the fulcrum part, and a stitching part having a stitching jig connected to the other side of the arm, The fulcrum portion and the stitching portion are configured to be positioned on opposite sides of the tire intermediate body with the tire equatorial plane as a boundary.
  • the stitching method of the present invention is a fulcrum in which one side is arranged on the support portion while moving the support portion movable in the tire radial direction of the tire intermediate body during the stitching operation in the tire radial direction of the tire intermediate body.
  • This is a stitching method in which a tire constituent member is crimped to the tire intermediate body by a stitching jig of a stitching portion, which is connected to the other portion of the arm that is connected to the portion and is rotatable about the fulcrum portion. And It includes a step of moving the fulcrum part in the tire width direction of the tire intermediate body during the stitching operation.
  • “during the stitching operation” includes not only the case where the tire intermediate body is stitched but also the operation of setting the tire intermediate body.
  • the stitching method of the present invention is a fulcrum in which one side is arranged on the support portion while moving the support portion movable in the tire radial direction of the tire intermediate body during the stitching operation in the tire radial direction of the tire intermediate body.
  • This is a stitching method in which a tire constituent member is crimped to the tire intermediate body by a stitching jig of a stitching portion, which is connected to the other portion of the arm that is connected to the portion and is rotatable about the fulcrum portion. And During the stitching operation, the fulcrum portion and the stitching portion are located on opposite sides of the tire equator plane of the tire intermediate body during the stitching operation.
  • a stitching apparatus and a stitching method capable of pressing a stitching jig in a direction perpendicular to a predetermined surface portion of a tire intermediate body.
  • FIG. 3 is a diagram showing the stitching apparatus according to the first embodiment of the present invention. This stitching device is for crimping a tire constituent member to a tire intermediate body, and FIG. 3 is a front view of the stitching device during a stitching operation (side view of the tire intermediate body).
  • the stitching device 1 includes a support portion 3 that can move in the tire radial direction of the tire intermediate body 2 during a stitching operation, and a fulcrum portion 4 that is disposed on the support portion 3. is doing.
  • the stitching device 1 is installed on the outer side in the tire radial direction of the tire intermediate 2 to be stitched.
  • the support portion 3 reciprocates in the tire radial direction (for each shaft 3a). Can move.
  • the stitching device 1 has two fulcrum portions 4 on the support portion 3.
  • the fulcrum portions 4 are arranged one by one at symmetrical positions with the tire equatorial plane CL of the tire intermediate body 2 as a boundary.
  • the support portion 3 is connected to a shaft 3a.
  • the shaft 3a extends in the tire width direction of the tire intermediate body 2 in the illustrated example, and can be rotated with the extending direction as a rotation axis. is there.
  • the stitching device 1 includes an arm 5 having one side connected to the fulcrum part 4 and capable of rotating around the fulcrum part 4 (rotational movement on a plane in this side view); And a stitching portion 6 having a stitching jig (rotary stitching roller in this example) 6 a connected to the other side of the arm 5.
  • a stitching jig rotary stitching roller in this example
  • the stitching roller 6a is configured to be rotatable about the extending direction of the arm 5, and the tire intermediate member 2 rotates in the tire circumferential direction while the stitching roller 6a rotates.
  • the stitching operation is performed by crimping.
  • the stitching device 1 of the first embodiment is characterized in that the fulcrum portion 4 is configured to be movable in the tire width direction of the tire intermediate body 2 during the stitching operation. .
  • the fulcrum portion 4 is configured to move along the shaft 3 a together with the support portion 3 by rotating the shaft 3 a around the extending direction of the shaft 3 a.
  • the method of making the fulcrum portion 4 movable is not limited to this example. For example, by providing a slide groove on the shaft 3a and providing a support mechanism 3 with a convex portion that fits into the slide groove, The fulcrum part 4 can also be movable in the tire width direction of the tire intermediate body 2.
  • the fulcrum portion 4 can be made movable in the tire width direction of the tire intermediate body 2 with respect to the fixed support portion 3, and the fulcrum portion 4 can be moved to the middle of the tire during the stitching operation.
  • Any known technique configured to be movable in the tire width direction of the body 2 can be used.
  • the function and effect of the first embodiment will be described.
  • the stitching device 1 of the first embodiment As shown by a two-dot chain line in FIG. 3, even when the support portion 3 moves to the outer side in the tire radial direction of the tire intermediate body 2, By moving the intermediate body 2 inward in the tire width direction, the angle of inclination of the arm 5 with respect to the tire radial direction can be increased, whereby the stitching roller 6a can be moved relative to the surface of the sidewall portion of the tire intermediate body 2.
  • the tire constituent members can be pressed against each other at an angle close to vertical.
  • the tire constituent member can be effectively crimped by a simple method only by making the fulcrum portion 4 movable in the tire width direction of the tire intermediate body 2. Then, since the position of the fulcrum portion 4 is movable, the initial position is determined so that the angle at which the stitching roller 6a contacts the tire intermediate body 2 is optimized according to the tire size before the stitching operation. You can also.
  • FIG. 4 is a diagram showing a stitching apparatus according to the second embodiment of the present invention.
  • This stitching device is for crimping a tire constituent member to a tire intermediate body
  • FIG. 4 is a front view of the stitching device during a stitching operation (side view of the tire intermediate body).
  • the stitching device 1 includes a support portion 3 that is movable in the tire radial direction of the tire intermediate body 2 during the stitching operation, and a fulcrum disposed on the support portion 3. And a portion 4.
  • the stitching device 1 is installed on the outer side in the tire radial direction of the tire intermediate 2 to be stitched. In this state, the support portion 3 can reciprocate in the tire radial direction.
  • the stitching device 1 has two fulcrum portions 4 on the support portion 3.
  • the fulcrum portions 4 are arranged one by one at symmetrical positions with the tire equatorial plane CL of the tire intermediate body 2 as a boundary.
  • the support part 3 is connected with the axis
  • the stitching device 1 has an arm 5 that is connected to the fulcrum part 4 on one side and capable of rotating around the fulcrum part 4 (rotational movement on a plane in this side view). And a stitching portion 6 having a stitching roller 6 a connected to the other side of the arm 5.
  • the stitching roller 6a is configured to be rotatable about the extending direction of the arm 5, and the tire intermediate member 2 rotates in the tire circumferential direction while the stitching roller 6a rotates.
  • the stitching operation is performed by crimping.
  • the fulcrum portion 4 and the stitching portion 6 are positioned on opposite sides of the tire equatorial plane CL of the tire intermediate body 2 during the stitching operation. It is characterized by having been comprised by this. That is, the two arms 5 are arranged so as to cross each other.
  • the effect of the second embodiment will be described.
  • the fulcrum portion 4 is located on the opposite side of the boundary between the stitching roller 6a connected via the arm 5 and the tire equatorial plane CL.
  • the angle of inclination with respect to the tire radial direction can be further increased, whereby the stitching roller 6a can be brought into contact with the surface of the tire intermediate body 2 at an angle close to perpendicular to press the tire constituent member.
  • the stitching roller 6a since the length of the arm 5 from the fulcrum part 4 to the stitching part 6 can be increased, the stitching roller 6a is brought into contact with the sidewall part of the tire intermediate 2 It becomes easy to let you.
  • the tire constituent member can be effectively crimped by a simple method only by setting the position of the fulcrum portion to the above position.
  • FIG. 5 is a diagram showing a stitching device according to a third embodiment of the present invention.
  • This stitching apparatus is for crimping a tire constituent member to a tire intermediate body
  • FIG. 5 is a front view (side view of the tire intermediate body) of the stitching apparatus during a stitching operation.
  • the stitching device 1 Similar to the first embodiment shown in FIG. 3, the stitching device 1 according to the third embodiment includes a support portion 3 that is movable in the tire radial direction of the tire intermediate body 2 during the stitching operation, and a support portion. 3 and a fulcrum part 4 arranged at 3.
  • the stitching device 1 is installed on the outer side in the tire radial direction of the tire intermediate 2 to be stitched. In this state, the support portion 3 can reciprocate in the tire radial direction. .
  • the stitching device 1 has two fulcrum portions 4 on the support portion 3.
  • the fulcrum portions 4 are arranged one by one at symmetrical positions with the tire equatorial plane CL of the tire intermediate body 2 as a boundary.
  • the support 3 is connected to a shaft 3 a that can rotate in the same direction as the circumferential direction of the tire intermediate 2.
  • the stitching device 1 is connected at one end to the fulcrum part 4 and can rotate around the fulcrum part 4 (rotational movement on a plane in this side view).
  • a stitching portion 6 having a stitching roller 6 a connected to the other end of the arm 5.
  • the stitching roller 6a is configured to be rotatable about the extending direction of the arm 5, and the tire intermediate member 2 rotates in the tire circumferential direction while the stitching roller 6a rotates.
  • the stitching operation is performed by crimping.
  • the fulcrum part 4 and the stitching part 6 are located on the opposite sides of the tire equatorial plane CL of the tire intermediate body 2 during the stitching operation. It is configured as follows. That is, the two arms 5 are arranged so as to cross each other.
  • the stitching device 1 of the third embodiment shown in FIG. 5 is configured such that the fulcrum portion 4 is movable in the tire width direction of the tire intermediate body 2 during the stitching operation, and
  • the fulcrum part 4 and the stitching part 6 are configured so as to be positioned on opposite sides of the tire equator plane CL of the tire intermediate body 2 during the stitching operation as a boundary.
  • the effect of the third embodiment will be described.
  • the fulcrum portion 4 is opposite to the stitching roller 6a connected via the arm 5 and the tire equatorial plane CL as a boundary. Therefore, the inclination angle of the arm 5 with respect to the tire radial direction can be further increased, and the fulcrum portion 4 is movable in the tire width direction of the tire intermediate body 2 as in the case of the first embodiment. Therefore, the inclination angle of the arm 5 with respect to the tire radial direction can be further increased. Therefore, according to the third embodiment, the stitching roller 6a can be further pressure-bonded to the surface of the tire intermediate body 2 at an angle close to perpendicular.
  • the angle at which the stitching roller 6a abuts on the tire intermediate body 2 according to the tire size is optimal before the stitching operation. Can be positioned so that Furthermore, since the length of the arm 5 from the fulcrum portion 4 to the stitching portion 6 can be increased as in the second embodiment, the stitching roller 6a is brought into contact with the sidewall portion of the tire intermediate body 2. It becomes easy to let you.
  • the fulcrum part 4 movable in the tire width direction of the tire intermediate body 2 is connected to the stitching part 6 connected via the arm 5.
  • the stitching roller 6a can be in contact with the portion from the innermost side to the outermost side in the tire radial direction of the sidewall portion of the tire intermediate body 2 in this case.
  • the length of the arm 5 may be set.
  • the two fulcrum portions 4 are arranged on the same axis (axis 3a).
  • the fulcrum portion 4 is movable on the shaft 3a.
  • the two fulcrum portions 4 are interlocked so that the shaft 3a is symmetrical with respect to the tire width direction of the tire intermediate body 2.
  • the fulcrum portion 4 can be made movable in the tire width direction of the tire intermediate body 2 by a simple method.
  • the fulcrum parts 4 arranged on the two support parts 3 are arranged on different axes (axis 3a), and the fulcrum parts 4 are arranged on different axes (axis 3a). It can also be configured to be movable. According to this, the fulcrum part 4 can move in a wider range in the tire width direction of the tire intermediate body 2. As shown in FIG. 6, it is preferable to synchronize the rotation of the two shafts 3 a by using the rotating belt 7. This is because the two fulcrum portions 4 can be interlocked and moved symmetrically in the tire width direction of the tire intermediate body 2.
  • the stitching roller 6a in a predetermined case, can be crimped in a direction perpendicular to the surface of the sidewall portion of the tire intermediate body 2 during the stitching operation. It is preferable that the tire intermediate body 2 is configured to be movable to a predetermined position in the tire width direction.
  • the stitching roller 6a in an SUV (multipurpose sports vehicle) size tire in which the position of the folded portion of the sidewall portion is located on the outer side in the tire radial direction, the stitching roller 6a is disposed on the sidewall on the outer side in the tire radial direction of the sidewall portion.
  • the fulcrum portion 4 is movable to a predetermined position in the tire width direction of the tire intermediate body 2 so that it is possible. is there.
  • the fulcrum part 4 is configured to be fixed at a predetermined position in the tire width direction of the tire intermediate body 2 during the stitching operation in another predetermined case. Is preferred. For tires with tire sizes where the height of the folded portion of the sidewall portion is not so high, it is sufficient to fix the fulcrum portion 4 and stitch it at an angle inclined to some extent from the vertical, so that a simple operation is sufficient. Because.
  • the stitching device further includes a displacement imparting portion (cylinder) 8 for rotating the arm 5, and the displacement imparting portion 8 is stitched on the basis of the fulcrum portion 4.
  • the length of the arm 5 arranged on the opposite side of the fulcrum part 6 from the fulcrum part 4 to the stitching part 6 is longer than the length of the arm 5 from the fulcrum part 4 to the displacement imparting part 8.
  • the displacement imparting portion 8 can greatly displace the other side of the arm 5 by the action of the moment only by giving a small displacement to one side with respect to the fulcrum portion 4 of the arm 5. This is because a large rotational motion can be given to the arm 5 by the displacement in the rotational direction.
  • the arm 5 is a shape bent along the outer contour of the tire intermediate body 2 during the stitching operation. This is because the tire intermediate body 2 and the arm 5 can be prevented from interfering with each other.
  • bending refers to interference with the tire intermediate 2 such as a curved shape as shown in FIG. 7, a bent shape having a bending point 5 a as shown in FIG. 5, an arc shape, or a convex shape. It includes various shapes that can be avoided.
  • the length of the arm 5 is such that when the support portion 3 is located at the innermost position in the tire radial direction of the tire intermediate body 2, the stitching portion 6 is the tire intermediate body 2. It is preferable that the length reaches the innermost position in the tire radial direction of the stitching target portion. This is because the movement of the fulcrum portion 4 in the tire width direction of the tire intermediate body 2 can be realized by a simple method using one axis or two axes.
  • the length of the arm 5 is preferably not more than twice the maximum length of the tire intermediate body 2 in the tire width direction.
  • the fulcrum portion 4 is moved in the tire width direction of the tire intermediate body 2 during the stitching operation.
  • a solid line and a two-dot chain line in FIG. Move closer to the inside in the tire width direction.
  • the angle of inclination of the arm 5 with respect to the tire radial direction can be increased, whereby the stitching roller 6a can be attached to the sidewall portion of the tire intermediate body 2.
  • the tire constituent member can be pressure-bonded to the tire intermediate body 2 rotating in the tire circumferential direction while rotating the stitching roller 6a in the same manner as described above.
  • the tire constituent member can be effectively pressure-bonded by a simple method only by moving the fulcrum portion 4 in the tire width direction of the tire intermediate body 2. Then, since the position of the fulcrum portion 4 is movable, the initial position is determined so that the angle at which the stitching roller 6a contacts the tire intermediate body 2 is optimized according to the tire size before the stitching operation. You can also.
  • the support 3 that can move in the tire radial direction of the tire intermediate 2 during the stitching operation is moved in the tire radial direction of the tire intermediate 2.
  • the middle of the tire is connected by a stitching roller 6a of the stitching portion 6 which is connected to the fulcrum portion 4 arranged on the support portion 3 on one side and connected to the other side of the arm 5 which is rotatable about the fulcrum portion 4.
  • a tire constituent member is pressure-bonded to the body 2.
  • the fulcrum portion 4 and the stitching portion 6 are located on the opposite sides of the tire equator plane CL of the tire intermediate body 2 during the stitching operation.
  • the fulcrum part 4 is located on the opposite side with the stitching roller 6a connected via the arm 5 and the tire equatorial plane CL as a boundary, the inclination angle of the arm 5 with respect to the tire radial direction is further increased.
  • the stitching roller 6a can be brought into contact with the surface of the tire intermediate body 2 at an angle close to vertical, and the tire constituent member can be pressure-bonded.
  • the stitching roller 6a is attached to the sidewall of the tire intermediate body 2. It becomes easy to make it contact
  • the tire constituent member can be effectively crimped by a simple method only by setting the position of the fulcrum portion 4 to the above position.
  • the stitching method according to the third embodiment basically performs the same operation as that of the first embodiment shown in FIG. 3. 4 and the stitching portion 6 are located on opposite sides of the tire equatorial plane CL of the tire intermediate body 2 during the stitching operation as a boundary. Then, as the support portion 3 is moved in the tire radial direction of the tire intermediate body 2, the fulcrum portion 4 is moved in the tire width direction of the tire intermediate body 2 during the stitching operation. In particular, as shown by a solid line and a two-dot chain line in FIG. Move closer to the inside in the tire width direction.
  • the fulcrum part 4 is movable in the tire width direction of the tire intermediate body 2, and the stitching roller 6a to which the fulcrum part 4 is connected via the arm 5;
  • the effect of both being located on the opposite side of the tire equatorial plane CL as a boundary can increase the angle of inclination of the arm 5 with respect to the tire radial direction. It is possible to make contact with the surface of the sidewall portion at an angle close to perpendicular.
  • the stitching roller 6a can always be brought into contact with the tire intermediate body 2 at an angle close to vertical from the innermost position in the tire radial direction to the outermost position in the tire radial direction.
  • the stitching roller 6a can be easily brought into contact with the sidewall portion of the tire intermediate body 2. Therefore, the tire constituent member can be pressure-bonded to the tire intermediate body 2 rotating in the tire circumferential direction while rotating the stitching roller 6a. Further, since the position of the fulcrum portion 4 is movable, the initial position is determined so that the angle at which the stitching roller 6a contacts the tire intermediate body 2 is optimized according to the tire size before the stitching operation. You can also.
  • the fulcrum portion 4 and the stitching portion 6 define the tire equatorial plane CL of the tire intermediate body 2 during the stitching operation.
  • the stitching roller 6a may be located on the same side as the boundary, and in this case also, the stitching roller 6a can be in contact with the portion of the sidewall portion of the tire intermediate body 2 from the innermost side to the outermost side in the tire radial direction. A length of 5 may be set.
  • the stitching method of the present invention preferably includes a step of moving two fulcrum portions 4 arranged on the same axis (axis 3a in FIGS. 3 and 5) on the same axis. .
  • the fulcrum portion 4 is movable on the shaft 3a. When the shaft 3a rotates, the two fulcrum portions 4 are interlocked to move symmetrically on the shaft 3a in the tire width direction of the tire intermediate body 2. Because it can. Therefore, the fulcrum portion 4 can be made movable in the tire width direction of the tire intermediate body 2 by a simple method.
  • the stitching method of the present invention includes a step of moving the two fulcrum portions 4 arranged on two different axes on different axes. According to this, the fulcrum part 4 can move in a wider range in the tire width direction of the tire intermediate body 2.
  • the rotation of the two shafts 3a may be synchronized using a gear (gear) instead of the rotating belt 7.
  • the stitching roller 6a in a predetermined case, during the stitching operation, the stitching roller 6a is crimped from the direction perpendicular to the surface of the sidewall portion of the tire intermediate body 3 at a predetermined position. It is preferable to include a step of moving the fulcrum portion 4 to a predetermined position in the tire width direction of the tire intermediate 2 so as to be possible.
  • the stitching roller 6a in an SUV (multipurpose sports vehicle) size tire in which the position of the folded portion of the sidewall portion is located on the outer side in the tire radial direction, the stitching roller 6a is disposed on the sidewall on the outer side in the tire radial direction of the sidewall portion.
  • the fulcrum portion 4 is preferably moved to a predetermined position in the tire width direction of the tire intermediate body 2 so as to be able to do so because it is necessary to press-bond at an angle close to perpendicular to the surface of the part.
  • the stitching method of the present invention preferably includes a step of fixing the tire intermediate body 2 at a predetermined position in the tire width direction during the stitching operation in another predetermined case.
  • a step of fixing the tire intermediate body 2 at a predetermined position in the tire width direction during the stitching operation in another predetermined case.
  • the arm 5 is moved around the fulcrum portion 4 by operating the displacement applying portion (cylinder) 8 disposed on the opposite side of the stitching portion 6 with the fulcrum portion 4 as a reference.
  • the length of the arm 5 from the fulcrum part 4 to the stitching part 6 is preferably longer than the length of the arm 5 from the fulcrum part 4 to the displacement applying part 8.
  • the displacement imparting portion 8 can greatly displace the other side of the arm 5 by the action of the moment only by giving a small displacement to one side with respect to the fulcrum portion 4 of the arm 5. This is because a large rotational motion can be given to the arm 5 by the displacement in the rotational direction.
  • the arm 5 is preferably bent along the outer contour of the tire intermediate body 2 during the stitching operation. This is because it is possible to avoid the interference between the tire intermediate body 2 and the arm 5 as described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Tires In General (AREA)

Abstract

Le but de la présente invention est de proposer un dispositif et un procédé de rouletage permettant de presser un gabarit de rouletage contre une partie précise de la surface d'un élément intermédiaire de pneu depuis la direction perpendiculaire. Pour ce dispositif de rouletage, la partie formant le point d'appui est conçue de façon à pouvoir se déplacer dans le sens de la largeur du pneu de l'élément intermédiaire de pneu, ou la partie formant le point d'appui et la partie de rouletage sont conçues de manière à être positionnées à l'opposé l'une de l'autre, le plan équatorial de l'élément intermédiaire de pneu servant de limite entre elles. Ce procédé de rouletage est caractérisé en ce qu'il comprend une étape de déplacement de la partie formant le point d'appui dans le sens de la largeur du pneu de l'élément intermédiaire de pneu pendant le rouletage; ou en ce que la partie formant le point d'appui et la partie de rouletage sont positionnées à l'opposé l'une de l'autre, le plan équatorial de l'élément intermédiaire de pneu formant une limite entre elles au cours du rouletage.
PCT/JP2014/001474 2014-03-14 2014-03-14 Dispositif et procédé de rouletage WO2015136576A1 (fr)

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JP2016507125A JP6254676B2 (ja) 2014-03-14 2014-03-14 ステッチング装置及びステッチング方法
EP14885266.8A EP3088167B1 (fr) 2014-03-14 2014-03-14 Dispositif et procédé de rouletage
CN201480072141.2A CN105873751B (zh) 2014-03-14 2014-03-14 滚压装置和滚压方法
US15/104,088 US20160318269A1 (en) 2014-03-14 2014-03-14 Stitching device and stitching method

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CN109263102A (zh) * 2018-09-30 2019-01-25 北京北人增材制造技术有限公司 轮胎胎面滚压装置

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JPH09117969A (ja) * 1995-10-24 1997-05-06 Bridgestone Corp タイヤ構成部材の圧着装置
JP2013039695A (ja) * 2011-08-12 2013-02-28 Sumitomo Rubber Ind Ltd 空気入りタイヤの製造方法
JP2014012342A (ja) * 2012-07-03 2014-01-23 Bridgestone Corp トレッド部材のステッチング方法及びステッチング装置

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JPH0994892A (ja) * 1995-10-03 1997-04-08 Yokohama Rubber Co Ltd:The タイヤ成形用ステッチャー装置
JPH09117969A (ja) * 1995-10-24 1997-05-06 Bridgestone Corp タイヤ構成部材の圧着装置
JP2013039695A (ja) * 2011-08-12 2013-02-28 Sumitomo Rubber Ind Ltd 空気入りタイヤの製造方法
JP2014012342A (ja) * 2012-07-03 2014-01-23 Bridgestone Corp トレッド部材のステッチング方法及びステッチング装置

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EP3088167A1 (fr) 2016-11-02
EP3088167B1 (fr) 2019-03-06
CN105873751B (zh) 2018-08-07
JP6254676B2 (ja) 2017-12-27
EP3088167A4 (fr) 2017-01-11
US20160318269A1 (en) 2016-11-03
CN105873751A (zh) 2016-08-17

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